Revert "enable lto for release builds (#10717)" (#10721)

This reverts commit 44161874ff.

Cargo.toml

@@ -119,13 +119,8 @@ name = "parity"
 
 [profile.dev]
 
-[profile.test]
-lto = false
-opt-level = 3 # makes tests slower to compile, but faster to run
-
 [profile.release]
 debug = false
-lto = true
 
 [workspace]
 # This should only list projects that are not

scripts/gitlab/test-linux.sh

@@ -6,7 +6,7 @@ set -e # fail on any error
 set -u # treat unset variables as error
 
 FEATURES="json-tests,ci-skip-tests"
-OPTIONS=""
+OPTIONS="--release"
 #use nproc `linux only
 THREADS=$(nproc)